24AA256T-E/MF

Product Overview

Category

The 24AA256T-E/MF belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This product is commonly used for non-volatile data storage in various electronic devices, such as microcontrollers, embedded systems, and consumer electronics.

Characteristics

• Non-volatile: The 24AA256T-E/MF retains stored data even when power is disconnected.
• High capacity: This chip has a storage capacity of 256 kilobits (32 kilobytes).
• Low power consumption: It operates at low voltage levels, making it energy-efficient.
• Fast write speed: The 24AA256T-E/MF offers a high-speed write operation, enabling quick data updates.
• Reliable performance: It provides reliable data retention and endurance, ensuring long-term usability.

Package and Quantity

The 24AA256T-E/MF is available in an 8-pin SOIC (Small Outline Integrated Circuit) package. It is typically sold in reels containing multiple units, with each reel containing 2500 chips.

Specifications

• Memory Capacity: 256 kilobits (32 kilobytes)
• Interface: I2C (Inter-Integrated Circuit)
• Operating Voltage: 1.7V to 5.5V
• Write Cycle Endurance: 1 million cycles
• Data Retention: Up to 200 years
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The 24AA256T-E/MF features an 8-pin SOIC package with the following pin configuration:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | A0 | Address Input Bit 0 | | 2 | A1 | Address Input Bit 1 | | 3 | A2 | Address Input Bit 2 | | 4 | VSS | Ground | | 5 | SDA | Serial Data Input/Output | | 6 | SCL | Serial Clock Input | | 7 | WP | Write Protect Input | | 8 | VCC | Power Supply Voltage |

Functional Features

• Random Access: The 24AA256T-E/MF allows random access to any memory location, facilitating efficient data retrieval.
• Byte and Page Write: It supports both byte and page write operations, providing flexibility in data storage.
• Software Write Protection: The WP pin can be used to enable or disable write protection, preventing accidental modification of stored data.
• Sequential Read: This chip enables sequential read operations, allowing for faster data retrieval.

Advantages and Disadvantages

Advantages

• High storage capacity
• Low power consumption
• Fast write speed
• Reliable performance
• Long data retention period

Disadvantages

• Limited compatibility with certain microcontrollers or systems
• Relatively higher cost compared to lower-capacity EEPROM chips

Working Principles

The 24AA256T-E/MF utilizes electrically erasable programmable read-only memory technology. It stores data by trapping charges in a floating gate transistor structure. To write data, an electrical charge is applied to the floating gate, altering its threshold voltage. Reading data involves detecting the threshold voltage of each memory cell. The I2C interface facilitates communication between the chip and the controlling device.

Detailed Application Field Plans

The 24AA256T-E/MF finds applications in various fields, including:

1. Automotive Electronics: Used for storing critical vehicle parameters, such as mileage, settings, and error codes.
2. Industrial Automation: Enables data storage for machine control systems, configuration settings, and production data logging.
3. Consumer Electronics: Utilized in devices like smart TVs, set-top boxes, and gaming consoles for storing user preferences, firmware updates, and usage logs.
4. Medical Devices: Used for storing patient data, device configurations, and calibration information in medical equipment.

Detailed Alternative Models

1. 24LC256: A similar EEPROM chip from Microchip Technology with the same storage capacity and I2C interface.
2. AT24C256: An alternative EEPROM chip from Atmel Corporation offering comparable specifications and functionality.
3. M24M02: A compatible EEPROM chip from STMicroelectronics with a higher storage capacity of 2 megabits (256 kilobytes).

These alternative models can be considered based on specific requirements and compatibility with the target system.

In conclusion, the 24AA256T-E/MF is a high-capacity EEPROM chip that offers reliable non-volatile data storage. With its fast write speed, low power consumption, and long data retention period, it finds applications in various industries. The detailed pin configuration, functional features, advantages, and disadvantages provide a comprehensive understanding of